Effects of cadmium on uptake and translocation of nutrient elements in different welsh onion (Allium fistulosum L.) cultivars
Effects of cadmium on uptake and translocation of nutrient elements in different welsh onion (Allium fistulosum L.) cultivars
复制标题
镉对不同品种大葱营养元素吸收和转运的影响
DOI：
10.1016/j.foodchem.2015.07.114
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发表时间：
2016-03-01
期刊：
影响因子：
8.8
通讯作者：
Ren, Wenjie
中科院分区：
文献类型：
--
作者：
Li, Xuhui;Zhou, Qixing;Ren, Wenjie
营养元素浓度是蔬菜的重要品质指标，品种间的积累差异可以为蔬菜重金属低积累的机理提供线索。通过盆栽试验，研究了4个镉(Cd)处理(CK、1.0、2.5和5.0 mg/kg)对25个大葱品种营养元素积累的影响。假茎叶中Cd含量与营养元素含量呈显著正相关(p<；0.05)。不同品种间营养元素含量也呈显著正相关(p<；0.05)，高Cd处理对品种间营养元素含量的影响较大，尤其是P、Fe、Mn。我们的结果表明，Cd与营养元素的积累以及品种间营养元素之间的积累存在协同效应。此外，大葱对Cd的吸收和转运过程与Mn密切相关。(C)2015爱思唯尔有限公司。保留所有权利。
The concentration of nutrient elements is an important quality characteristic of vegetables, and the variation in accumulation among cultivars can provide clues about the mechanism of low accumulation of heavy metals. Pot-culture experiments were arranged under four cadmium (Cd) treatments (CK, 1.0, 2.5 and 5.0 mg/kg) to explore influences of Cd on the accumulation of nutrient elements in 25 welsh onion cultivars. There were significant positive correlations (p < 0.05) between Cd and nutrient elements in the pseudostems and leaves. There were also significant positive correlations in nutrient elements (p < 0.05) among cultivars, which might be disturbed under high Cd treatments, especially for P, Fe and Mn. Our results suggested that there is a synergistic effect on the accumulation between Cd and nutrient elements, and within nutrient elements among cultivars. In addition the uptake and translocation process of Cd was closely related to Mn in welsh onion. (C) 2015 Elsevier Ltd. All rights reserved.